1967 ~ Barracuda 383-S and Dart GTS-383 ~ 280 HP 'How can this be.'

1967

Both the 383/325 HP 'B-Body' 383 {4-Barrel} and 383/280 HP 'A-Body' {4-Barrel}
had identical engine components.

Piston ................... 10.0 -1 Compression
Cylinder Heads ...... #2406516 {2.08" Intake and 1.60" Exhaust}
Camshaft 'Hyraulic' .. .425"/.437" Lift ~ 256*/260* Duration ~ 32* Overlap
Intake ................... #301-666-968 {Low-Rise Dual-Plane}
Carburetors .......... Carter AFB {#4298S M/T and #4299S A/T} = Rated @ 575 CFM's

1967 '383' 4-Barrel Ratings

A-Body
* 280 HP @ 4200 RPM's
* 400 Ft/Lbs. of Torque @ 2400 RPM's

B-Body
* 325 HP @ 4800 RPM's
* 425 Ft/Lbs. of Torque @ 2800 RPM's